Also, the issue goes away when I turn down the resolution to 1920x1080 again. So it is certainly tied to the high resolution.
The problem may have something to do with the HDMI cable on one of the two monitors. Only one monitor uses HDMI, the second monitor uses DisplayPort. Before I switched to HDMI 2.0, the refresh rate was limited to 30 Hz at 3840x2160 resolution, and the problem was also not present. So possibly the problem is related to the high resolution and refresh rate, as it was not present with lower refresh rate, and disappears with lower resolution. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2075525 Title: After screen blank, the displays configuration gets lost To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/2075525/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
